000			003420000a22001450004500
060			_a100
082			_a630.685 SIN
100			_aSingh, SS
245			_aPrinciples of agronomy
260			_aNew Delhi, Kalyani Publishers
260			_c1988
300			_a409
650			_aAgronomy/ Soil fertility/ Water management-crops/
942			_cBK
999			_c217151 _d217151